Simplify the following expressions: a. cos 4 sin 4 b. sin 2 3
Question:
Simplify the following expressions:
a. cos4 θ − sin4 θ
b. sin2 3θ − sin2 3θ cos2 3θ
c. cos4 θ + 2 sin2 θ cos2 θ + sin4 θ
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a To simplify cos sin we can use the identity cos 1 sin cos sin cos sin 1 sin sin Using the ident...View the full answer
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Related Book For 
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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